Coin selector



June 24, 1947. F. E. WALLIN 2,422,867

COIN SELECTOR Filed Aug. 7, 1944 I N V EN TOR. Jfl aw-m Patented June 24, 1947 COIN SELECTOR Fred E. Waliin, St. Louis, Mo., asslgnor to National Slug Reiectors corporation of Missouri Inc., St. Louis, Mo, a

Application August 7, 1944, Serial No. 548.414

This invention relates in general to coin selectors and more particularly to an improved device for separating undersize and underweight coins from coins of acceptable diameter and weight. The distinct feature over similar prior inventions is directed to an improved means of greater sensitivity for lay-passing or arresting undersize or underweight coins from anacceptance passageway, which means constitutes a principal object of the invention.

A further object of the invention is the provision of a gravity operated means whereby a second deposited coin will not influence or cause a previously arrested coin to be moved to an acceptance passageway.

Further objects and advantages of one embodiment of the invention will be apparent in the following description and drawings in which:

Fig. 1 represents a side elevation of a conventional coin selector.

Fig. 2 is a fragmentary enlarged end view of the coin selector shown Fig. 1 taken through section lines 22.

Fig. 3 is a plan view of the selector shown Fig. 1.

Fig. 4 is a fragmentary view of the selector shown Fig. l with elements in changedposition.

Figs. 5 and 6 show movable elements shown Fig. 1 under two different operating conditions.

Fig. 7 is a perspective view of elements shown in Fig. 5 in normal rest position.

Referring to Fig. 1, a frame I is provided for mounting the parts of the selector including a gate 2 pivotally secured to frame I by pin 3. The

gate 2 provides the hanger for the improved weighing rocker .4 which is pivotally suspended to the gate by stud I. A pendant counterweight 6 is pivotally secured to the rocker 4 by shoulder screw 1 better shown Figs. 2 and 3. A deposit passageway is formed by a flange 8 of frame I and pin 9 secured perpendicularly in the gate 2. An acceptance passageway is formed by the rear wall iii of frame I and the inside surface of gate 2 and a runner l I. The latter is adjustably positioned to the inside surface of gate 2 by screws l2-l2.

Referring to Fi 1, the space in the frame directly beneath the rocker 4 is utilized as a re-' jection passageway.

This coin selector is of the type utilizing conductivity and impact tests after a coin has been presented to its acceptance passageway. Magnets li-It are for general descriptive purposes only and play no part in the improvement herein described.

1 Claim. (01. 194-102) The rocker 4, shown Fig. 1. is provided with an arm 14 terminating in an abutment it which projects laterally through an aperture it in gate 2. into the space between the rear wall ill and the gate 2 as shown Fig. 2. A transverse abutment I1 is integral with rocker 4 and spaced a predetermined distance from abutment l5 and projects through aperture it into the acceptance passageway. Integral with abutment I1 is a pro- Jection I! which extends in spaced relation between the inside surfaces of the rear wall Ill and the gate 2 as shown Fig. 2. The shape of the rocker 4 and its projections. together with the counterweight 6, is clearly shown Fig. 7.

In operation, and assuming that a coin 20, having a diameter less than that of an acceptable coin, is deposited in the entrance passageway (shown Fig. 1) it will descend by gravity between the accurately spaced abutments i5 and I1 respectively, and thence escape downwardly into a rejection passageway.

In the event an underweight coin having a proper diameter is deposited in the entrance passageway, it will descend part way between abutments I5 and i1 and be retained thereby as is illustrated in Fig. 5, for the reason that the coin will not gain sufficient inertia or have sufficient rocker 4 sufficiently far to pass the coin to the 'runner -l I. It will be noted, as indicated in the drawings, that the moment arm is increased as the rocker pivots from its normal unloaded position. When a coin is so arrested, the gate 2 will necessarily have to be moved by means not shown to displace the arrested underweight coin to a rejection passageway. By reference to Figure 6 it will be noted that a second coin is retained by an arrested coin.

Fig. 4 illustrates a coin 2| of acceptable weight and diameter which, when deposited in the entrance passageway, will impinge upon the abutments l5 and i1 and move the rocker 4 about its stud 5 against the restraining action of counterweight 6 to a position where the coin will roll by gravity down the inclined runner II to the acceptance passageway. The use of the pendant counterweight 6 is a decided advantage over a fixed counterweight in that the first motion of the ,rocker is only sli htly resisted but further motion is progressively resistant in a gradually increased amount whereas a fixed counterweight would present a relatively high initial inertia, and thus mitigate against extreme sensitivity in elimihating coinshaving weights very close to the weight oi an acceptable coin.

Having described my invention I claim:

In a coin separator. a frame, means forming entrance, acceptance and rejection passageways. a rocker, means pivoting said rocker on said frame at substantially the junction of said passageways, a counterweight and means pivotally mounting said counterweight on one side of a vertical line passing through the pivot of said rocker, said rocker having two spaced abutments projecting into said entrance passageway, the distance between said abutments being sufllcient to support a coin of a diameter equal to or greater than a coin of an acceptable diameter and to pass a coin between them of insufficient diameter. the pivot of said counterweight and at least one of said abutments being located on opposite sides of said vertical line passing through the pivot of said rocker to thereby cause pivoting of said 20 .97

rocker and counterweight and permit the passing of said coin into said acceptance passageway and sustain a coin having a weight less than the weight of an accepted coin between said abutments even upon the deposit of a second coin, the other of said abutments having a projection serving to partially support a second coin.

FRED E. WALLIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 886,962 Eckert May-5, 1908 1,021,615 Marsh Mar. 26, 1912 2,326,214 Gottfried Aug. 10, 1943 Brooks June 30, 1936 

